| Named By: | Robert Broom in 1911 |
| Time Period: | Lower Jurassic Hettangian-Sinemurian |
| Location: | South Africa - Upper Elliot Formation |
| Size: | About 5 meters long |
| Diet: | Herbivore |
| Fossil(s): | Partial post cranial skeleton |
| Classification: | | Chordata | Reptilia | Dinosauria | Saurischia | Sauropodomorpha | Massopoda | |
Gryponyx (meaning "hooked-claw") is an extinct genus of massopod sauropodomorph known from southern Free State, central South Africa.